參數(shù)資料
型號(hào): M3851
廠商: Mitsubishi Electric Corporation
英文描述: Single Chip 8 Bits Microcomputer(8位單片機(jī))
中文描述: 單芯片8位單片機(jī)(8位單片機(jī))
文件頁數(shù): 51/61頁
文件大?。?/td> 904K
代理商: M3851
51
3851 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Symbol
Parameter
Unit
MULTI-MASTER I
2
C-BUS BUS LINE CHARACTERISTICS
Table 21 Multi-master I
2
C-BUS bus line characteristics
Bus free time
Hold time for START condition
Hold time for S
CL
clock = “0”
Rising time of both S
CL
and S
DA
signals
Data hold time
Hold time for S
CL
clock = “1”
Falling time of both S
CL
and S
DA
signals
Data setup time
Setup time for repeated START condition
Setup time for STOP condition
t
BUF
t
HD;STA
t
LOW
t
R
t
HD;DAT
t
HIGH
t
F
t
SU;DAT
t
SU;STA
t
SU;STO
Min.
4.7
Max.
Min.
1.3
Max.
μ
s
μ
s
μ
s
ns
μ
s
μ
s
ns
ns
μ
s
μ
s
Standard clock mode
High-speed clock mode
Note:
C
b
= total capacitance of 1 bus line
Fig. 53 Timing diagram of multi-master I
2
C-BUS
4.0
4.7
0
4.0
250
4.7
4.0
1000
300
0.6
1.3
20+0.1C
b
0
0.6
20+0.1C
b
100
0.6
0.6
300
0.9
300
t
BUF
t
HD:STA
t
HD:DAT
t
LOW
t
R
t
F
t
HIGH
t
su:DAT
t
su:STA
t
HD:STA
t
su:STO
S
CL
P
S
Sr
P
S
DA
S : START condition
Sr : RESTART condition
P : STOP condition
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